CN111121119A - Range hood with self-cleaning function - Google Patents
Range hood with self-cleaning function Download PDFInfo
- Publication number
- CN111121119A CN111121119A CN201811275371.5A CN201811275371A CN111121119A CN 111121119 A CN111121119 A CN 111121119A CN 201811275371 A CN201811275371 A CN 201811275371A CN 111121119 A CN111121119 A CN 111121119A
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- China
- Prior art keywords
- liquid
- spraying pipe
- liquid spraying
- pipe
- cleaning
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2035—Arrangement or mounting of filters
Abstract
The invention relates to a range hood with a self-cleaning function, which comprises a fan with a volute and an impeller and a cleaning assembly movably arranged at an air inlet of the fan, wherein the cleaning assembly comprises a liquid spraying pipe, a driving wheel, a driven wheel, a transmission belt and a nozzle. The liquid spraying pipe can swing back and forth in a certain range in front of the filter screen and is opposite to the fixedly arranged liquid spraying pipe, so that the spraying uniformity of the detergent is improved, and the cleaning effect is improved; meanwhile, when the cleaning assembly is not used, the cleaning assembly can be rotated to one side of the air inlet of the fan, the air inlet cannot be shielded, and therefore the fan is ensured to have high oil smoke suction air volume.
Description
Technical Field
The invention relates to a range hood with a self-cleaning function.
Background
The range hood is a household appliance for pumping away oil smoke generated by cooking on a cooking bench, but for most range hoods, a big problem lies in that: the volatile oil smoke can take place the condensation in range hood's inside, and oil can form thick and difficult abluent greasy dirt in the organism after mixing with impurity such as dust, granule, and after the greasy dirt accumulation reached the certain degree, can form the solid layer of compactness in range hood's inside, further increaseed the clean degree of difficulty.
The prior range hoods are generally required to be disassembled for cleaning, and some range hoods in the prior art have a self-cleaning function, for example, the range hoods in chinese patent application No. CN201280039582.3 with publication No. CN103732994B and the range hoods in chinese patent application No. CN200780027956.9 with publication No. CN101495814B have a self-cleaning function, and these range hoods are provided with cleaning agent containers, pumps, spray nozzles and other parts inside the device for spraying the cleaning agent on the blades, the flow channels, the filter screen and other parts and removing the residual liquid after cleaning. In the structure in the prior art, a cleaning structure is generally fixed at a specific position, and in order to enable washing liquid to be sprayed onto a filter screen of an impeller or a fan air inlet, the washing liquid needs to directly extend into the impeller or be directly fixed on the front side of the filter screen, although the structure realizes the spraying of the washing agent, the spraying range of the washing agent is not uniform, and the washing dead angle is easy to exist; and, when the cleaning assembly need not use, the washing assembly is also flowed through to the oil smoke, and this not only influences the amount of wind of fan, also leads to cleaning assembly to contact with the oil smoke for a long time, makes a large amount of oil smoke of clean subassembly adhesion itself, influences the use even.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a range hood with a self-cleaning function, which improves the spraying uniformity of a detergent and improves the cleaning effect by rotating a cleaning assembly.
The invention aims to solve another technical problem and provides a range hood with a self-cleaning function, which can hide a cleaning component outside the flowing range of oil smoke under the condition of no cleaning so as to improve the air quantity of a fan and protect a cleaning component from being polluted.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a range hood with self-cleaning function, is including the fan that has spiral case and impeller, the impeller can be located in the spiral case with rotating, the fan has the air intake, is provided with filter screen, its characterized in that on this air intake: still including locating the clean subassembly of fan air inlet department with removing, this clean subassembly includes
The first end of the liquid spraying pipe can be rotatably arranged at the edge of the air inlet of the fan, the other end of the liquid spraying pipe is a free end and can rotate to the middle part of the air inlet of the fan, a liquid collecting cavity is formed in the hollow part of the liquid spraying pipe, a liquid inlet communicated with the liquid collecting cavity is formed in the liquid spraying pipe, and at least two liquid outlet holes which are arranged at intervals are formed in one side, close to the filter screen, of the liquid spraying pipe;
the driving wheel can be rotatably arranged on the first end of the liquid spraying pipe;
the driven wheel can be rotatably arranged on the second end of the liquid spraying pipe;
the driving wheel and the driven wheel are connected with each other in a rotatable manner; and
the nozzle is arranged on the transmission belt and moves synchronously with the transmission belt, and is provided with a liquid inlet hole communicated with the liquid collecting cavity of the liquid spraying pipe and a nozzle arranged towards the filter screen.
In the above scheme, the first end of the liquid spraying pipe is bent to one side to form a first connecting arm, the second end of the liquid spraying pipe is bent to one side to form a second connecting arm arranged in parallel with the first connecting arm, the driving wheel can be rotatably sleeved on the first connecting arm, and the driven wheel can be rotatably sleeved on the second connecting arm. By adopting the structure, the driving wheel and the driven wheel are positioned in the same plane, so that the driving belt can drive the nozzle to stably reciprocate.
Preferably, a driving member arranged near the air inlet and used for driving the liquid spraying pipe and the driving wheel to rotate is arranged on the outer side of the volute. And a transmission assembly which can enable the liquid spraying pipe and the driving wheel to simultaneously rotate and generate relative rotation is connected between the driving piece and the liquid spraying pipe and between the driving wheel and the driving wheel. Only the driving wheel can rotate relatively to the liquid spraying pipe, the reciprocating movement of the nozzle can be realized, and the cleaning dead angle is eliminated.
It is further preferred, the transmission assembly includes first gear, second gear and connecting rod, first gear connection is on the output of driving piece, the transmission is engaged with first gear mutually to the second gear, the second gear cover is put on the first connecting arm of hydrojet pipe and can drive first connecting arm synchronous rotation, the first end of connecting rod is connected on the lateral wall of second gear and is close to the marginal arrangement of second gear, the second end of connecting rod is connected with the lateral wall of action wheel and the junction is close to the marginal arrangement of action wheel. Adopt above-mentioned structure, the driving piece is preferred to be the motor, the motor is when just reversing, corresponding rotation takes place for the first gear of accessible drives the second gear, the hydrojet pipe can rotate along with the second gear is synchronous, thereby can realize the swing in the certain limit of fan air intake, and simultaneously, because the action wheel passes through the connecting rod and connects on the second gear, such connected mode makes and takes place relative rotation between action wheel and the second gear because of the difference of linear velocity, thereby in the hydrojet pipe wobbling, make the drive belt drive nozzle along the axial reciprocating motion of hydrojet pipe, clear away to the dirt on the filter screen in slight department, avoid wasing the dead angle, improve the cleaning performance.
In order to facilitate installation, the end part of the first connecting arm of the liquid spraying pipe forms the liquid inlet, a supporting pipe capable of supporting the first connecting arm to rotate is arranged on the outer wall of the volute, the supporting pipe is hollow and connected with the liquid inlet of the liquid spraying pipe, and the supporting pipe is connected with a washing liquid supply structure.
Preferably, the length of the spray tube is greater than the screen radius and less than the screen diameter. The length of the liquid spraying pipe is larger than the radius of the filter screen, so that the whole filter screen is cleaned in the rotating process of the filter screen along with the fan, the length of the liquid spraying pipe is smaller than the diameter of the filter screen, the liquid outlet pressure is kept as far as possible, the pressure loss of the washing liquid before being sprayed is reduced, and the cleaning effect is improved.
In each scheme, the cleaning assembly further comprises a liquid storage tank, a liquid guide pipe and a water pump, wherein the liquid storage tank is arranged on the outer side of the volute and used for containing detergent, the first end of the liquid guide pipe is connected with the liquid storage tank, the second end of the liquid guide pipe is connected with a liquid inlet of the liquid spraying pipe, and the water pump is used for providing power for liquid conveying in the liquid guide pipe.
Preferably, the cleaning assembly further comprises a heating device arranged at the periphery of the catheter and capable of heating the liquid in the catheter. In winter, the cleaning effect of the detergent on oil stains is poor, and the cleaning effect can be improved after heating.
Preferably, the liquid outlet holes are arranged in multiple groups at intervals along the axial direction of the liquid spraying pipe, and each group of liquid outlet holes comprises two liquid outlet holes which are oppositely separated and arranged at an angle of 10-30 degrees with the air inlet of the fan. The structure enlarges the liquid outlet range, further avoids the occurrence of cleaning dead angles and improves the cleaning effect.
Compared with the prior art, the invention has the advantages that: the liquid spraying pipe can swing back and forth in a certain range in front of the filter screen, and compared with the fixedly arranged liquid spraying pipe, the liquid spraying pipe improves the spraying uniformity of the detergent, thereby improving the cleaning effect; meanwhile, when the cleaning assembly is not used, the cleaning assembly can be rotated to one side of the air inlet of the fan, the air inlet cannot be shielded, and therefore the fan is ensured to have high oil smoke suction air volume.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the hidden housing in FIG. 1;
FIG. 3 is a cross-sectional view of a spray tube in an embodiment of the present invention;
FIG. 4 is a schematic view of an assembly relationship between the cleaning assembly and the transmission assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a cleaning assembly in an operating state according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a cleaning assembly according to an embodiment of the present invention in an unused state.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 6, the range hood with self-cleaning function includes a housing 3, a fan 1 and a cleaning assembly 2, the fan 1 is disposed in the housing 3, the fan 1 has a volute 11 and an impeller 12, the impeller 12 is rotatably disposed in the volute 11, the fan 1 has an air inlet 10, and a filter screen 13 capable of rotating with the impeller 12 is disposed on the air inlet 10.
The cleaning assembly 2 of the present embodiment is movably disposed at the air inlet 10 of the fan 1. Specifically, cleaning assembly 2 includes spray tube 21, action wheel 22, follows driving wheel 23, drive belt 24, nozzle 25, liquid reserve tank 26, catheter 27, water pump and heating device 28, and the first end of spray tube 21 can be located fan 1 air intake 10 edge with rotating, and the other end of spray tube 21 is for rotating the free end and can rotate to fan 1 air intake 10 middle part, and the length of spray tube 21 is greater than filter screen 13 radius and is less than filter screen 13 diameter. The length of the liquid spraying pipe 21 is larger than the radius of the filter screen 13, so that the whole filter screen 13 is cleaned in the rotation process of the filter screen 13 along with the fan 1, and the length of the liquid spraying pipe 21 is smaller than the diameter of the filter screen 13, so that the liquid outlet pressure is kept as much as possible, the pressure loss of the cleaning liquid before spraying is reduced, and the cleaning effect is improved. The interior of the liquid spraying pipe 21 is hollow to form a liquid collecting cavity 210, a liquid inlet 211 communicated with the liquid collecting cavity 210 is formed in the liquid spraying pipe 21, and a plurality of liquid outlet holes 212 arranged at intervals are formed in one side, close to the filter screen 13, of the liquid spraying pipe 21. The liquid outlet holes 212 are arranged in multiple groups at intervals along the axial direction of the liquid spraying pipe 21, and each group of liquid outlet holes 212 comprises two liquid outlet holes 212 which are oppositely separated and arranged at an angle a of 10-30 degrees with the air inlet 10 of the fan 1. The structure enlarges the liquid outlet range, further avoids the occurrence of cleaning dead angles and improves the cleaning effect. The driving pulley 22 is rotatably provided on a first end of the liquid ejecting tube 21, the driven pulley 23 is rotatably provided on a second end of the liquid ejecting tube 21, and the driving pulley 22 and the driven pulley 23 are rotatably connected to each other by the driving belt 24. The nozzle 25 is provided on the belt 24 and moves synchronously with the belt 24, the nozzle 25 has a liquid inlet hole 251 communicating with the liquid collecting chamber of the spray pipe 21 and a nozzle 252 disposed toward the screen 13, the liquid inlet hole 251 communicating with the liquid collecting chamber of the spray pipe 21 through a plastic hose.
Specifically, a first end of the liquid spraying tube 21 is bent to one side to form a first connecting arm 213, a second end of the liquid spraying tube 21 is bent to one side to form a second connecting arm 214 arranged in parallel with the first connecting arm 213, the driving wheel 22 is rotatably sleeved on the first connecting arm 213, and the driven wheel 23 is rotatably sleeved on the second connecting arm 214. With this structure, the driving pulley 22 and the driven pulley 23 can be positioned in the same plane, so that the driving belt 24 can drive the nozzle 25 to reciprocate stably.
The outside of the volute 11 is provided with a driving member 29 disposed near the air inlet 10 for driving the liquid spraying pipe 21 and the driving wheel 22 to rotate. The driving member 29 is a motor with a motor shaft capable of rotating forward and backward, and a transmission assembly 20 capable of rotating the liquid spraying tube 21 and the driving wheel 22 simultaneously and generating relative rotation is connected between the driving member 29 and the liquid spraying tube 21 and the driving wheel 22. The reciprocating movement of the nozzle 25 can be realized only if the driving wheel 22 can rotate relatively to the liquid spray pipe 21, so as to eliminate the cleaning dead angle. The transmission assembly 20 includes a first gear 201, a second gear 202 and a connecting rod 203, the first gear 201 is connected to the output shaft of the driving member 29 and rotates synchronously with the output shaft, the second gear 202 is in mesh transmission with the first gear 201, the second gear 202 is sleeved on the first connecting arm 213 of the liquid spraying tube 21 and can drive the first connecting arm 213 to rotate synchronously, a first end of the connecting rod 203 is connected to a side wall of the second gear 202 and is arranged near an edge of the second gear 202, a second end of the connecting rod 203 is connected to a side wall of the driving wheel 22, and a connection position is arranged near an edge of the driving wheel 22. Adopt above-mentioned structure, the motor is when just reversing, the accessible first gear 201 drives second gear 202 and takes place corresponding rotation, spray tube 21 can follow second gear 202 synchronous rotation, thereby can realize the swing in the certain limit of 1 air intake 10 of fan, simultaneously, because action wheel 22 passes through connecting rod 203 and connects on second gear 202, such connected mode makes and takes place relative rotation between action wheel 22 and the second gear 202 because of the difference of linear velocity, thereby in spray tube 21 wobbling, make drive belt 24 drive nozzle 25 along spray tube 21's axial reciprocating motion, in the tiny position to the dirt on the filter screen 13 clear away, avoid wasing the dead angle, improve the cleaning performance.
For the convenience of installation, the end of the first connecting arm 213 of the spray tube 21 forms the liquid inlet 211, and the outer wall of the volute casing 11 is provided with a support tube 111 capable of supporting the first connecting arm 213 to rotate, wherein the support tube 111 is hollow and connected to the liquid inlet 211 of the spray tube 21. The liquid storage tank 26 is arranged outside the volute 11 and used for storing detergent, the first end of the liquid guide pipe 27 is connected with the liquid storage tank 26, the second end of the liquid guide pipe 27 is connected with the input end of the support pipe 111, and the water pump is used for providing power for conveying liquid in the liquid guide pipe 27. The heating device 28 is arranged at the periphery of the liquid guide pipe 27 and can heat the liquid in the liquid guide pipe 27, the cleaning effect of the detergent on oil stains is poor in winter temperature, and the cleaning effect can be improved after heating.
The liquid spraying pipe 21 of the embodiment can swing back and forth in a certain range in front of the filter screen 13, and compared with a fixedly arranged liquid spraying pipe, the embodiment improves the spraying uniformity of the detergent, thereby improving the cleaning effect; meanwhile, when the cleaning component 2 is not used, the cleaning component 2 can be rotated to one side of the air inlet 10 of the fan 1, and the air inlet cannot be shielded, so that the fan 1 is ensured to have high oil smoke suction air volume, and certainly, the risk that the cleaning component 2 cannot be used due to the fact that the cleaning component 2 is hidden outside the flowing range of oil smoke is avoided.
Claims (10)
1. The utility model provides a range hood with self-cleaning function, is including fan (1) that has spiral case (11) and impeller (12), impeller (12) can locate spiral case (11) with rotating in, fan (1) has air intake (10), is provided with filter screen (13), its characterized in that on this air intake (10): the cleaning device also comprises a cleaning component (2) which can be movably arranged at the air inlet (10) of the fan (1), and the cleaning component (2) comprises
The first end of the liquid spraying pipe (21) can be rotatably arranged at the edge of the air inlet (10) of the fan (1), the other end of the liquid spraying pipe (21) is a rotary free end and can rotate to the middle of the air inlet (10) of the fan (1), a liquid collecting cavity is formed in the liquid spraying pipe (21) in a hollow mode, a liquid inlet (211) communicated with the liquid collecting cavity is formed in the liquid spraying pipe (21), and at least two liquid outlet holes (212) which are arranged at intervals are formed in one side, close to the filter screen (13), of the liquid spraying pipe (21);
a driving wheel (22) rotatably arranged on the first end of the liquid spraying pipe (21);
a driven wheel (23) rotatably arranged on the second end of the liquid spraying pipe (21);
the transmission belt (24) is rotatably connected to the driving wheel (22) and the driven wheel (23); and
and the nozzle (25) is arranged on the transmission belt (24) and synchronously moves along with the transmission belt (24), and the nozzle (25) is provided with a liquid inlet hole (251) communicated with the liquid collecting cavity of the liquid spraying pipe (21) and a nozzle (252) arranged towards the filter screen (13).
2. The range hood with self-cleaning function of claim 1, wherein: the first end of the liquid spraying pipe (21) is bent towards one side to form a first connecting arm (213), the second end of the liquid spraying pipe (21) is bent towards one side to form a second connecting arm (214) which is arranged in parallel with the first connecting arm (213), the driving wheel (22) can be rotatably sleeved on the first connecting arm (213), and the driven wheel (23) can be rotatably sleeved on the second connecting arm (214).
3. The range hood with self-cleaning function according to claim 2, wherein: and a driving piece (29) which is arranged close to the air inlet (10) and used for driving the liquid spraying pipe (21) and the driving wheel (22) to rotate is arranged on the outer side of the volute (11).
4. The range hood with self-cleaning function according to claim 3, wherein: and a transmission assembly (20) which can enable the liquid spraying pipe (21) and the driving wheel (22) to rotate simultaneously and generate relative rotation is connected between the driving piece (29) and the liquid spraying pipe (21) and between the driving wheel (22).
5. The range hood with self-cleaning function according to claim 4, wherein: the transmission assembly (20) comprises a first gear (201), a second gear (202) and a connecting rod (203), the first gear (201) is connected to the output end of the driving part (29), the second gear (202) is in meshing transmission with the first gear (201), the second gear (202) is sleeved on a first connecting arm (213) of the liquid spraying pipe (21) and can drive the first connecting arm (213) to synchronously rotate, the first end of the connecting rod (203) is connected to the side wall of the second gear (202) and arranged close to the edge of the second gear (202), and the second end of the connecting rod (203) is connected with the side wall of the driving wheel (22) and the connecting position of the second end of the connecting rod (203) is arranged close to the edge of the driving wheel (22).
6. The range hood with self-cleaning function according to claim 5, wherein: the first connecting arm end (213) of the liquid spraying pipe (21) forms the liquid inlet (211), the outer wall of the volute (11) is provided with a supporting pipe (111) capable of supporting the first connecting arm (213) to rotate, the supporting pipe (111) is hollow and connected with the liquid inlet (211) of the liquid spraying pipe (21), and the supporting pipe (111) is connected with a washing liquid supply structure.
7. The range hood with self-cleaning function as claimed in any one of claims 1 to 6, wherein: the length of the liquid spraying pipe (21) is larger than the radius of the filter screen (13) and smaller than the diameter of the filter screen (13).
8. The range hood with self-cleaning function as claimed in any one of claims 1 to 6, wherein: the cleaning assembly (2) further comprises a liquid storage tank (26), a liquid guide pipe (27) and a water pump, wherein the liquid storage tank (26) is arranged on the outer side of the volute (11) and used for containing detergent, the first end of the liquid guide pipe (27) is connected with the liquid storage tank (26), the second end of the liquid guide pipe (27) is connected with a liquid inlet (211) of the liquid spraying pipe (21), and the water pump is used for providing power for liquid conveying in the liquid guide pipe (27).
9. The range hood with self-cleaning function according to claim 5, wherein: the cleaning assembly (2) further comprises a heating device (28), wherein the heating device (28) is arranged on the periphery of the liquid guide pipe (27) and can heat the liquid in the liquid guide pipe (27).
10. The range hood with self-cleaning function as claimed in any one of claims 1 to 6, wherein: go out liquid hole (212) and be the multiunit and arrange along the axial interval of hydrojet pipe (21), every group goes out liquid hole (21) and includes two relative parts and is 10 ~ 30 jiaos (a) liquid hole (212) of arranging with fan (1) air intake (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275371.5A CN111121119A (en) | 2018-10-30 | 2018-10-30 | Range hood with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275371.5A CN111121119A (en) | 2018-10-30 | 2018-10-30 | Range hood with self-cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111121119A true CN111121119A (en) | 2020-05-08 |
Family
ID=70484281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811275371.5A Pending CN111121119A (en) | 2018-10-30 | 2018-10-30 | Range hood with self-cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111121119A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183786A (en) * | 2021-11-01 | 2022-03-15 | 宁波方太厨具有限公司 | Control method of fan cleaning device for range hood |
| CN114837745A (en) * | 2022-05-07 | 2022-08-02 | 南昌工程学院 | Ventilation state monitoring robot for tunnel construction |
-
2018
- 2018-10-30 CN CN201811275371.5A patent/CN111121119A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183786A (en) * | 2021-11-01 | 2022-03-15 | 宁波方太厨具有限公司 | Control method of fan cleaning device for range hood |
| CN114183786B (en) * | 2021-11-01 | 2023-09-15 | 宁波方太厨具有限公司 | Control method of fan cleaning device for range hood |
| CN114837745A (en) * | 2022-05-07 | 2022-08-02 | 南昌工程学院 | Ventilation state monitoring robot for tunnel construction |
| CN114837745B (en) * | 2022-05-07 | 2023-02-17 | 南昌工程学院 | Ventilation state monitoring robot for tunnel construction |
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